This is just a quick first pass with pictures. I didn't go into great detail because I'm short on time. Feel free to PM or post with questions.

The problem: HUD display has dropped down so far that it cannot be viewed in a normal seated position. If, when you lean waaaay up towards the dash/windshield, you can see the digital readout, this fix should get your HUD back into normal viewing position.

Once you have the HUD removed from the dash, take it to your work area.

Re-install. Be sure to check your display before re-assembling the entire dash.

Welcome back HUD!!

For what it's worth, I am of the personal opinion that extreme lowering these cars is the likely cause of breaking mounting bosses (which cause HUD to drop out of sight). Without much suspension travel, the additional shock is transmitted to the HUD unit....and it clearly wasn't designed or manufactured to withstand this additional pressure. I actually saw my HUD make the dreaded drop while driving down a very bumpy road one day. Took my car back to standard ride height. I'd rather be comfortable on the inside than "look cool" from the outside. Your mileage and opinion may vary

My seat is all the way down to, but the up of the display seens to be projecting into the cover. Id like it to come up maybe 2 inches

Wonder if yours might have dropped some? That seems awful low, is your display adjustment all the way up too? Do you know anyone else with a C5 you might be able to sit in and see how the HUD seems in theirs?

Wonder if yours might have dropped some? That seems awful low, is your display adjustment all the way up too? Do you know anyone else with a C5 you might be able to sit in and see how the HUD seems in theirs?